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LTC3526LB Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3526LB
Description  550mA 1MHz Synchronous Step-Up DC/DC Converters
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3526LB Datasheet(HTML) 4 Page - Linear Technology

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LTC3526L/LTC3526LB

3526lfc
–50 –30 –10
10
30
50
70
90
TEMPERATURE (°C)
1.0
1.1
1.2
3526l G12
0.8
0.7
1.3
0.9
NORMALIZED TO 25°C
Start-Up Delay Time vs VIN
Burst Mode Threshold Current
vs VIN (LTC3526L)
Oscillator Frequency Change
vs VOUT
RDS(ON) vs VOUT
Oscillator Frequency Change
vs Temperature
RDS(ON) Change vs Temperature
VIN (V)
1.0
0
10
30
40
50
100
70
2.0
3.0
3.5
3526l G07
20
80
90
60
1.5
2.5
4.0
4.5
VIN (V)
1.0
0
5
10
15
20
25
30
1.25
1.5
3526l G08a
ENTER BURST
LEAVE BURST
VOUT = 1.8V
COUT = 10µF
L = 4.7µH
Burst Mode Threshold Current
vs VIN (LTC3526L)
VIN (V)
1.0
15
20
25
3526l G08b
10
5
0
1.25
1.5
30
2.0
1.75
ENTER BURST
LEAVE BURST
VOUT = 2.5V
COUT = 10µF
L = 4.7µH
Burst Mode Threshold Current
vs VIN (LTC3526L)
Burst Mode Threshold Current
vs VIN (LTC3526L)
VIN (V)
1.0
0
5
15
20
25
35
1.5
2.0
3526l G08c
10
40
30
2.5
3.0
ENTER BURST
LEAVE BURST
VOUT = 3.3V
COUT = 10µF
L = 4.7µH
VIN (V)
1.0
40
50
2.5
3.5
3526l G08d
30
20
1.5
2.0
3.0
4.0
4.5
10
0
ENTER BURST
LEAVE BURST
VOUT = 5V
COUT = 10µF
L = 4.7µH
VOUT (V)
1.5
1
2
3
3.0
4.0
3526l G09
0
–1
2.0
2.5
3.5
4.5
5.0
–2
–3
NORMALIZED TO VOUT = 3.3V
VOUT (V)
1.5
0.50
0.45
0.80
0.85
0.90
2.5
3.5
4.0
3526l G10
0.35
0.70
0.60
0.40
0.75
0.30
0.65
0.55
2.0
3.0
4.5
5.0
PMOS
NMOS
–50 –30 –10
10
30
50
70
90
TEMPERATURE (°C)
4
6
8
3526l G11
0
–10
–8
–6
10
2
–2
–4
NORMALIZED TO 25°C
typicAl perForMAnce chArActeristics



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